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Gamma-decay of the 27/2− 0. 6s E3-isomer in 15168 Er83

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The nucleus 151Er was investigated through γ-ray and conversion electron measurements from its 27/2− isomer decay produced in a HI reaction at the GSI on-line mass separator. Inaddition tothe known intense yrast cascade,a complex 8% decay branch to above-yrast states was identified. Among these, the 11/2+ member of the νf7/2 × 3− septet was unambiguously characterised. Its energy implies that the quadrupole moment of the 3− core has changed sign with respect to the lighter even-Z N=83 isotones.

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Author notes

  1. C. T. Zhang

    Present address: Chemistry Departement, Purdue University, West Lafayette, IN, 47907, USA

Authors and Affiliations

  1. Institut für Kernphysik, KFA Jülich, D-52425, Jülich, Germany

    R. Collatz, P. Kleinheinz & C. T. Zhang

  2. GSI, Planckstraße 1, D-64291, Darmstadt, Germany

    R. Collatz, H. Keller, R. Kirchner, O. Klepper & E. Roeckl

Authors
  1. R. Collatz
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  2. P. Kleinheinz
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  3. C. T. Zhang
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  4. H. Keller
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  5. R. Kirchner
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  6. O. Klepper
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  7. E. Roeckl
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Collatz, R., Kleinheinz, P., Zhang, C.T. et al. Gamma-decay of the 27/2− 0. 6s E3-isomer in 15168 Er83 . Z Phys A - Particles and Fields 359, 115–116 (1997). https://doi.org/10.1007/s002180050375

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  • DOI: https://doi.org/10.1007/s002180050375

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